ACPI means advanced configuration and be. For the first time in December 1996 (by company HP, etc., Intel, Microsoft, etc., Phoenix, and Toshiba) released and contains sets to identify the hardware, motherboard, and other settings devices and power management device can . ACPI accordance with Prudential, the "key element for the administration, settings, and power management system for Direct is" the latest version of the specification ACPI, No. 5. the 0. that in November 2011, the out Come is.

the most important standard elements known to manage the electricity system, which had been seen in two general categories instead. The first standard is that the OS or the operating system, electric control system, the attack takes place, and in front of the standard, called APM, which stands for the words, assigns power management can be, and in fact, the task of control and management of the electricity system is the responsibility of the BIOS, the computer can read.And the operating system on it plays a limited game.In ACPI, etc. the BIOS help functions direct access to the lowest levels of the hardware to the operating system provides. So the operating system has almost complete control over how system power consumption.

another of the important characteristics ACPI, bringing the features, power management system, which in the past were referred to and access allowed them in Laptop, etc. personal computers and servers. For example, the system may include wills, at the stage of energy consumption in the limit, the final, work (low power consumption) means that only the memory power to be and sometimes not. But events, targeted(GPE, which stands for the word "general-purpose events" are) to allow the sending of the some system, like a modem, keyboard, and mouse, have that this cause of action can be the level of energy consumption, system speed to the normal mode back.

for the standard keys of a keyboard standard for the operation of the suspension and turn off the computer support.Some of the companies it features have developed and to do this from the other Keys also called arrow keys, system management (Power management keys) have used.

ACPI in addition to the use of assembly language that form the foundation in any existing computer. to handle the implementation of events, electricity, system, language, inner herself called (ACPI Machine Language) Language, machine, ACPI, which stands for the IT AML. uses.

Microsoft for the first time from the standard in Windows 98 your support. The first version of the operating system FreeBSD, which supports this standard in itself includ., the 5.0 was.The rest of the operating system under Linux later support this standard began.